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Growth, Efficiency And Physiological Changes Of Swine As Affected By Environmental Temperature, Energy Level And Lysine Source And Level (Fat, Season)., Alberto Ramon Ojeda Jan 1985

Growth, Efficiency And Physiological Changes Of Swine As Affected By Environmental Temperature, Energy Level And Lysine Source And Level (Fat, Season)., Alberto Ramon Ojeda

LSU Historical Dissertations and Theses

Two consecutive summer and winter trials involving low and high-heat increment diets were fed to growing-finishing swine, and three trials evaluating crystalline lysine utilization were conducted during the starting phase of growth. Dehydrated alfalfa meal and vegetable oil in factorial combination were fed during the winter months. Crystalline lysine and vegetable oil, also in factorial combination, were fed during the summer months. In the lysine utilization trials, crystalline or protein-bound lysine were each fed at three levels. Response criteria evaluated were rats and efficiency of gain, serum T(,3), T(,4) and cholesterol level in the winter and summer trials; and rate …

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Evaluation Of Cotton, Gossypium Hirsutum L., Genotypes For Resistance To The Reniform Nematode, Rotylenchulus Reniformis Linford And Oliveira., John Palmer Beasley Jr Jan 1985

Evaluation Of Cotton, Gossypium Hirsutum L., Genotypes For Resistance To The Reniform Nematode, Rotylenchulus Reniformis Linford And Oliveira., John Palmer Beasley Jr

LSU Historical Dissertations and Theses

Cotton, Gossypium hirsutum L., is a valuable cash crop in Louisiana that is grown primarily for its fiber. The reniform nematode, Rotylenchulus reniformis Linford and Oliveira, is a major pest of cotton in Louisiana, where it was first identified in 1941 and has now been found in 39 of 64 parishes. Nematicides and crop rotation are conventional methods of reniform nematode control, but resistant cultivars offer the most economical and practical method of control. The primary objective of this study was to examine and evaluate new and previously reported sources of reniform nematode resistance in cotton, which could eventually be …

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The Elementary Level Food And Fitness Curriculum Of The Louisiana Cooperative Extension Service: Program Effectiveness And Management (Nutrition Education)., Peggy Cain Gentry Jan 1985

The Elementary Level Food And Fitness Curriculum Of The Louisiana Cooperative Extension Service: Program Effectiveness And Management (Nutrition Education)., Peggy Cain Gentry

LSU Historical Dissertations and Theses

A study was conducted to evaluate the effectiveness of a food and fitness program implemented by Home Economists of the Cooperative Extension Service. The Fitness Factor program was taught by 49 classroom teachers to 1248 fifth grade students in 20 schools in nine Louisiana parishes. A secondary purpose was to identify and study program management factors that affect success of the program. Three sources of data collection were (a) a youth pretest/posttest instrument measuring food and fitness practices and attitudes, and food consumption, (b) a classroom teacher questionnaire and (c) a Home Economist questionnaire. Ten hypotheses were tested. The following …

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Production And Nitrogen Dynamics Of A Vallisneria Americana Grass Bed In Lake Pontchartrain, Louisiana (Nitrogen Cycle, Modeling, Seagrasses, Decomposition Phenology, Vallisneria-Celery Grass-Eelgrass, Environmental Factors)., Diana Lee Steller Jan 1985

Production And Nitrogen Dynamics Of A Vallisneria Americana Grass Bed In Lake Pontchartrain, Louisiana (Nitrogen Cycle, Modeling, Seagrasses, Decomposition Phenology, Vallisneria-Celery Grass-Eelgrass, Environmental Factors)., Diana Lee Steller

LSU Historical Dissertations and Theses

Vallisneria americana grass beds of Lake Pontchartrain contribute approximately 200 g dry weight/m('2)/yr primary production, a continuous release of detrital material, and rapid nutrient recycling. A harvest method was used to estimate production. The addition of litterfall to harvest production raised annual production estimates by up to 28%. When litterfall was corrected for decomposition, the production estimates were raised by up to 85% over harvest estimates alone. Litterfall and decomposition increased toward shore and occurred throughout the year providing a continuous supply of energy and nutrients. Grass bed production varied along the coastline and was greatest at mid-depths. Values of …

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Perceptions Of Nine Change Agent Roles And Related Work Variables By County Extension Agents In The Minnesota Agricultural Extension Service--1985., Jared Melville Smalley Jan 1985

Perceptions Of Nine Change Agent Roles And Related Work Variables By County Extension Agents In The Minnesota Agricultural Extension Service--1985., Jared Melville Smalley

LSU Historical Dissertations and Theses

The major focus of this dissertation study was on the self-expectations of Minnesota County Extension Agents as they carry out nine change agent roles in their educational work. Impetus for the study came from a 1984 report that indicated 70.5 percent of these agents felt emotional strain due to "expect too much of self.". Data was collected regarding the nine roles and six work-related variables by mail questionnaire. A total of 230 usable responses were received from the 248 agents on active duty during May, 1985. The major findings of the study were generalized as follows: (1) The most positive …

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Role Of The United States Agricultural Teacher Education Profession In International Agriculture And Rural Development., Ismail Bin Yahya Jan 1985

Role Of The United States Agricultural Teacher Education Profession In International Agriculture And Rural Development., Ismail Bin Yahya

LSU Historical Dissertations and Theses

Purpose. The primary goal of this study was to answer the question: What has been the contribution of the United States agricultural teacher education profession to the international development process? The study, therefore, was a synthesis of past involvement of agricultural teacher educators in international agriculture and rural improvement activities since 1950. Population. The population of this study consisted of 117 agricultural teacher educators in the United States with at least .51 FTE responsibilities in teacher education programs and experience in international development acitivites abroad. Objectives. Eight specific objectives of the study were the identification of (1) primary goals of …

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Allelochemicals From Soybean Affecting Pseudoplusia Includens (Walker) Biology And Pheromone From Chilo Plejadellus Zinken Mediating C. Plejadellus Sexual Behavior (Looper)., Porfirio Caballero Jan 1985

Allelochemicals From Soybean Affecting Pseudoplusia Includens (Walker) Biology And Pheromone From Chilo Plejadellus Zinken Mediating C. Plejadellus Sexual Behavior (Looper)., Porfirio Caballero

LSU Historical Dissertations and Theses

Extracts of foliage from the insect resistant soybean genotype PI227687 were bioassayed for activity against the soybean looper, Pseudoplusia includens (Walker), in feeding deterrency and growth inhibition tests. Dichloromethane extract had a pronounced deterrent effect on feeding, while petroleum ether and methanol extracts stimulated feeding. The water extract exhibited neutral activity. Flash chromatography of the dichloromethane extract yielded four fractions with moderate deterrent properties, one which was strongly deterrent, and one which was stimulative. Similar fractionation of the methanol extract yielded four fractions; one stimulated feeding, two deterred feeding, and one was neutral. Feeding P. includens larvae on artificial diet …

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Detection Of Clavibacter Xyli Subsp. Xyli, The Ratoon Stunting Disease Bacterium, In Sugarcane By Dot Blot Hybridization., Jimmy Michael Kamso-Pratt Jan 1985

Detection Of Clavibacter Xyli Subsp. Xyli, The Ratoon Stunting Disease Bacterium, In Sugarcane By Dot Blot Hybridization., Jimmy Michael Kamso-Pratt

LSU Historical Dissertations and Theses

Recombinant DNA technology was used to produce a probe for detection of Clavibacter xyli subsp. xyli, the sugarcane ratoon stunting disease agent. C. xyli, subsp. xyli chromosomal DNA was digested with the restriction enzyme Pst 1, inserted into the plasmid pUC 19, and transformed into Escherichia coli JM 83. Recombinant clones containing six different sizes of C. xyli subsp. xyli DNA sequences were obtained. Plasmid K3-5, with an insert of 4.9Kb, and C. xyli subsp. xyli chromosomal DNA, were radiolabelled by nick translation using dCTP or dATP (alpha-('32)P). The labelled DNAs were used to detect homologous DNA sequences present in …

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Rice By-Products In Ruminant Rations, T Wayne White Jan 1985

Rice By-Products In Ruminant Rations, T Wayne White

LSU Agricultural Experiment Station Reports

No abstract provided.

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Performance And Slaughter Characteristics Of 1- And 2-Year-Old Hereford And Hereford-Brahman Steers Grazing Pensacola Bahiagrass, Coastal Bermudagrass, And Dallisgrass, T W. White Jan 1985

Performance And Slaughter Characteristics Of 1- And 2-Year-Old Hereford And Hereford-Brahman Steers Grazing Pensacola Bahiagrass, Coastal Bermudagrass, And Dallisgrass, T W. White

LSU Agricultural Experiment Station Reports

No abstract provided.

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Factors Involved In Soybean Yield Losses At Nonoptimal Planting Times In Louisiana, J E. Board Jan 1985

Factors Involved In Soybean Yield Losses At Nonoptimal Planting Times In Louisiana, J E. Board

LSU Agricultural Experiment Station Reports

No abstract provided.

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Cenobium 1985, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, P. K. Hendrix, Laura Hokett Jan 1985

Cenobium 1985, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, P. K. Hendrix, Laura Hokett

Cenobium Yearbook

Cenobium began publication in 1977 and continued through 1990. Produced by students, the yearbooks are a chronicle of the daily life and the special events experienced by veterinary students at the LSU School of Veterinary Medicine.

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Chromatofocusing In The Purification And Separation Of Apo- And Holo-(Vitamin D-Binding Protein), M. J. Keenan, R. P. Holmes Jan 1985

Chromatofocusing In The Purification And Separation Of Apo- And Holo-(Vitamin D-Binding Protein), M. J. Keenan, R. P. Holmes

Faculty Publications

Chromatofocusing was used to purify the vitamin D-binding protein (DBP) from pig plasma in a procedure that consisted of an initial DEAE-cellulose chromatography followed by DEAE-Sephadex chromatography, with final purification by chromatofocusing. The protein was purified 184-fold over its concentration in plasma. When the plasma was labelled with a tracer concentration of [3H]calcidiol, it was apparent that holo- and apo-DBP did not co-chromatograph on chromatofocusing. The separation of these two forms of DBP on chromatofocusing was verified by using purified apo-DBP mixed with either a tracer or a saturating concentration of calcidiol. This separation was consistent with differences observed in …

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The Behavioral Ecology Of The First Instar Southern Green Stink Bug, Nezara Viridula (L.) (Aggregation, Pheromone, Embryo, Egg, Nymph)., Jeffrey Alan Lockwood Jan 1985

The Behavioral Ecology Of The First Instar Southern Green Stink Bug, Nezara Viridula (L.) (Aggregation, Pheromone, Embryo, Egg, Nymph)., Jeffrey Alan Lockwood

LSU Historical Dissertations and Theses

Outer row embryos of the southern green stick bug, Nezara viridula (L.), orient toward the center of the egg mass; inner row embryos do not. Embryonic orientation was mediated by stimuli provided by the glue which holds the egg mass together. Physical and chemical orientation cues associated with the glue were present only on the inner surfaces of outer row eggs; other eggs received no such differential stimuli and therefore oriented as a function of the oviposition behavior of the female. Embryonic orientation assured that upon hatching, outer row nymphs received the stimulation necessary for arrestment and inclusion in the …

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Dependence Of Fishery Species On Salt Marshes: The Role Of Food And Refuge, Donald F. Boesch, R. Eugune Turner Dec 1984

Dependence Of Fishery Species On Salt Marshes: The Role Of Food And Refuge, Donald F. Boesch, R. Eugune Turner

Faculty Publications

Salt marshes are widely believed to serve as nurseries for many fishes and crustaceans of fishery value as a result of the high production of vascular plant detritus and the protection from predation offered by shallow, spatially complex habitats. Comparisons of the yields of species which reside in salt marsh habitats during critical life history stages (such as penaeid shrimp) with the area of such habitats and their greater densities in flooded marshes and associated tidal creeks support the premise that marshes enhance the yield of such species. A range of evidence, including the amount of detrital export from marshes, …

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Liver And Egg Yolk Cholesterol Changes Caused By Dietary Lipids., Jesus Perez-Buriel Jan 1984

Liver And Egg Yolk Cholesterol Changes Caused By Dietary Lipids., Jesus Perez-Buriel

LSU Historical Dissertations and Theses

A series of seven short term experiments were conducted using SCWL laying hens to study liver and egg yolk cholesterol changes caused by dietary lipids. For all the experiments, the individually caged layers were 55 week-old or older and automated procedures were used to measure the liver and yolk cholesterol responses. In the first four experiments the diets contained olive or safflower oils at 8%, oleic or linoleic acids at 6%, all with or without cholesterol. In experiment 5, dietary levels of olive and safflower (1 and 8%) and cholesterol (0 and 1%) were factorially combined and examined. The olive …

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Manipur In Transition: Differentials Of Development In A Polyethnic Area Of India., Kiran Banga Chhokar Jan 1984

Manipur In Transition: Differentials Of Development In A Polyethnic Area Of India., Kiran Banga Chhokar

LSU Historical Dissertations and Theses

The present study seeks to investigate the processes of socio-economic change that have affected the major ethnic groups in Manipur, mainly the subsistence level tribals and the Meitei peasantry; the strategies adopted by these groups, and individuals within the groups, to cope with the changed environment; and the spatial expression of these processes of change in varying patterns of development. Manipur, a polyethnic state in northeastern India, is currently the scene of hostilities among the different ethnic groups. The study tests the hypothesis that the underlying cause of these conflicts is the difference in the levels of development of the …

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High Temperature Drying And Tempering Of Parboiled Rice And Effects On Grain Quality., Lakshman Velupillai Jan 1984

High Temperature Drying And Tempering Of Parboiled Rice And Effects On Grain Quality., Lakshman Velupillai

LSU Historical Dissertations and Theses

A study of high temperature drying and tempering of parboiled rice was undertaken to evaluate the effects on grain quality. Thirtysix treatments, with three levels of air temperature, three levels of moisture (of rice after exposure in the dryer), and four levels of tempering, were performed on Saturn variety, medium grain rice, parboiled under fixed conditions. The dried and tempered rice samples were then moisture equilibrated under room conditions and subjected to standard milling procedures. Analyses were performed to evaluate color, texture, protein, and strength characteristics of the milled rice. A time-based study of kernel hardness and strength properties was …

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Mechanical And Chemical Conditioning As An Aid In Hastening Drying Rate Of Ryegrass Forage., Marcel Tsang Mui Chung Jan 1984

Mechanical And Chemical Conditioning As An Aid In Hastening Drying Rate Of Ryegrass Forage., Marcel Tsang Mui Chung

LSU Historical Dissertations and Theses

Laboratory tests were conducted to evaluate four types of mechanical, two types of chemical and combinations of mechanical-chemical conditioning treatments on drying rate and quality of ryegrass forage. Mechanical treatments ranged from cuticle abrasion to crushing of the stems while the chemicals were expected to remove or disrupt epicuticular waxes. The statistical design was a randomized block with two observations per cell. Analysis of variance results yielded highly significant block-treatment interaction for all variables examined. Two types of drying pattern were indicated. For treatments restricted to the plant surface as caused by the brushes and chemicals, the drying pattern was …

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The Role Of Sweet Potato Resistance In The Population Dynamics And Development Of Meloidogyne Incognita., Gary Wright Lawrence Jan 1984

The Role Of Sweet Potato Resistance In The Population Dynamics And Development Of Meloidogyne Incognita., Gary Wright Lawrence

LSU Historical Dissertations and Theses

Root-knot nematode populations endemic to Louisiana soils were identified to species and race. Meloidogyne incognita (Kofoid and White) Chitwood, (MI) accounted for 97 percent of the populations identified. Of the M. incognita species 55 percent were Race 1, 38 percent Race 3, and 7 percent Race 4. Meloidogyne javanica represented 3 percent of the populations studied. Populations were compared to the M. incognita used in the LSU sweet potato breeding program (MIS) for their virulence on the susceptible 'Centennial' and resistant 'Jasper', 'Jewel', and L4-73. The populations varied in virulence to the sweet potato cultivars with some populations being more …

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Cenobium 1984, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, Marilyn Moore Jan 1984

Cenobium 1984, Louisiana State University And Agricultural And Mechanical College, School Of Veterinary Medicine, Marilyn Moore

Cenobium Yearbook

Cenobium began publication in 1977 and continued through 1990. Produced by students, the yearbooks are a chronicle of the daily life and the special events experienced by veterinary students at the LSU School of Veterinary Medicine.

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Effects Of Selected Pinching Dates And Lighting Regimes On Poinsettia Quality, E N. O'Rourke Jan 1984

Effects Of Selected Pinching Dates And Lighting Regimes On Poinsettia Quality, E N. O'Rourke

LSU Agricultural Experiment Station Reports

No abstract provided.

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Summary Of Varietal Trials With Warm-Season Perennial Grasses In Louisiana, 1970-82, W R. Odson Jan 1984

Summary Of Varietal Trials With Warm-Season Perennial Grasses In Louisiana, 1970-82, W R. Odson

LSU Agricultural Experiment Station Reports

No abstract provided.

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Sulphur Fractions Of Selected Soils In Louisiana As Related To Yield Of Sudangrass-Sorghum Hybrid, William Patrick Bonner Jan 1984

Sulphur Fractions Of Selected Soils In Louisiana As Related To Yield Of Sudangrass-Sorghum Hybrid, William Patrick Bonner

LSU Agricultural Experiment Station Reports

No abstract provided.

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Effect Of Dietary Sodium Reduction On Red Blood Cell Sodium Concentration And Sodium-Lithium Countertransport, Richard Cooper, Maurizio Trevisan, Linda Van Horn, Emmanuel Larbi, Kiang Liu, Seraphim Nanas, Hirotsugu Ueshima, Christopher Sempos, David Ostrow, Jeremiah Stamler Jan 1984

Effect Of Dietary Sodium Reduction On Red Blood Cell Sodium Concentration And Sodium-Lithium Countertransport, Richard Cooper, Maurizio Trevisan, Linda Van Horn, Emmanuel Larbi, Kiang Liu, Seraphim Nanas, Hirotsugu Ueshima, Christopher Sempos, David Ostrow, Jeremiah Stamler

Faculty Publications

A randomized, crossover trial was carried out on the effect of moderate sodium reduction on red-blood-cell sodium metabolism. The participants were healthy high school students (mean age = 16 years, n = 33). Changes in sodium-lithium countertransport and intracellular sodium concentration were evaluated 24 days after a decrease in dietary sodium from approximately 110 to 40 mEq per day. Dietary sodium restriction had no significant effect on either sodium-lithium countertransport or intracellular sodium concentration. © 1984 American Heart Association, Inc.

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Louisiana Agriculture Magazine, Winter 1984-1985, Lsu Agricultural Experiment Station Jan 1984

Louisiana Agriculture Magazine, Winter 1984-1985, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

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Interactions Of Soybean Arthropods And Crop Weeds: Diversity, Moth Nutrition, And Stability (Foraging Behavior, Nectar Analysis, Lepidopterous)., Fred Lewis Collins Jan 1984

Interactions Of Soybean Arthropods And Crop Weeds: Diversity, Moth Nutrition, And Stability (Foraging Behavior, Nectar Analysis, Lepidopterous)., Fred Lewis Collins

LSU Historical Dissertations and Theses

Weeds which occur in crop ecosystems may cause suppressive or stimulating effects on arthropod abundance. Yet, little is known about the weed-insect interactions in Louisiana soybean. A three-part study was conducted from 1980-1983 to measure the abundance of arthropods in soybean, Glycine max Merr., as affected by the presence of absence of various weeds. A survey of arthropod abundance was conducted in commercial soybean fields which were either weedy or weed-free in central and south central Louisiana during 1980. Weedy fields had greater abundance of spiders, Geocoris punctipes (Say), and Lebia analis Dejean. Late instar green cloverworm, Anticarsia gemmatalis Hubner, …

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Louisiana Agriculture Magazine, Fall 1983, Lsu Agricultural Experiment Station Oct 1983

Louisiana Agriculture Magazine, Fall 1983, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

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The MR-Value Of Chloroplast Coupling Factor 1, James V. Moroney, Linda Lopresti, Bruce F. Mcewen, Richard E. Mccarty, Gordon G. Hammes Jul 1983

The MR-Value Of Chloroplast Coupling Factor 1, James V. Moroney, Linda Lopresti, Bruce F. Mcewen, Richard E. Mccarty, Gordon G. Hammes

Faculty Publications

The Mr of spinach chloroplast coupling factor 1 has been determined by sedimentation equilibrium and by light scattering to be 400 000 ± 24 600 and 407 000 ± 20 000, respectively. These values differ substantially from that obtained previously (325 000) and are consistent with an α3β3γδε{lunate} subunit stoichiometry. © 1983.

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Louisiana Agriculture Magazine, Summer 1983, Lsu Agricultural Experiment Station Jul 1983

Louisiana Agriculture Magazine, Summer 1983, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.

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